Answer
2.75 seconds
Work Step by Step
A: 220 ft/s
B: 200 ft/s, .25 second headstart
$220x=y$
$200x+50 = y$
$220x=200x+50$
$220x-200x = 200x+50-200x$
$20x=50$
$20x/20 = 50/20$
$x=2.5$
$2.5+.25 =2.75$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 6 - Systems of Equations and Inequalities - 6-2 Solving Systems Using Substitution - Practice and Problem-Solving Exercises - Page 372: 39
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